C5 vs ZR1
I would believe your stock gearing in the C5 would still make you reach top speed in 5th, b/c six is so steep. The nice thing about the ZR1 Trans is that it reaches its top speed in sixth, so you still would have some legs left to go a bit faster if the aerodynamics if the C5 can handle it. If you look at Hinson Motorsports mile competition car, you will see that they created their own front chin spoiler to make sure the thing stuck to the ground. At near 200 or over, that's definitely something to consider.
The current ZR1 and Z06 both have aero packages that can handle those speeds. The way the current ZR1's chin spoiler protrudes a few inches forward creates extra down force for top speed runs.
The current ZR1 and Z06 both have aero packages that can handle those speeds. The way the current ZR1's chin spoiler protrudes a few inches forward creates extra down force for top speed runs.
At 192mph in the standing mile, my front end is lifting about 6". There is no stability issues, just realize there is alot of airflow at those speeds. With 700rwhp my Vette pulls strong in 5th above 3k rpms. So to answer your question, it is possible, but how long do you have to get to speed, and then to stop? I still use the stock ratio gears with an RPM stage 5+ M6 trans.
FWIW: I run 3.90's with an M12 which makes 6th gear much more usable with the RWHP in the sig. I haven't done the math to compare it to the M6 5th gear and 3.42's.
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Launching!
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From: ATX
If you apply too much torque to 6th gear in a T56 (weakest gear in the trans) it will shatter / shear. This will prevent you from pulling 6th gear. From exp once you're getting close to 700rwhp you need to think about a T6060 swap. It's not only about "DO I HAVE ENOUGH HP TO PULL THIS GEAR?". You may, you may also have more power than the gear can handle.
Last edited by ysb02; Dec 7, 2012 at 12:23 PM.
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From: ATX
https://docs.google.com/spreadsheet/...HFkcmVFLWphbHc
That's an old spreadsheet I slapped together on MN12 vs MN6. You could plug in ZR1 #s fairly easy.
That's an old spreadsheet I slapped together on MN12 vs MN6. You could plug in ZR1 #s fairly easy.
https://docs.google.com/spreadsheet/...HFkcmVFLWphbHc
That's an old spreadsheet I slapped together on MN12 vs MN6. You could plug in ZR1 #s fairly easy.
That's an old spreadsheet I slapped together on MN12 vs MN6. You could plug in ZR1 #s fairly easy.
How bout an MN6 with a 2.73
Check the math out on that.
bookoo 5th gear pull...
